Martial arts stick



FIG. 1 is a perspective view of martial arts stick;

FIG. 2 is a front elevation view thereof, the rear elevation view being identical;

FIG. 3 is a left side elevation view thereof, the right side elevation view being identical;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken line showing of two parallel lines depicts environment and forms no part of the claim. 

CLAIM The ornamental design for a martial arts stick, as shown and described. 